Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-08-08T13:06:11Z No. of bitstreams: 1 2017 - Ana Carolina Marques de Oliveira.pdf: 2679291 bytes, checksum: 45f07178e07bd1ba891d59c35b4f71a7 (MD5) / Made available in DSpace on 2018-08-08T13:06:12Z (GMT). No. of bitstreams: 1 2017 - Ana Carolina Marques de Oliveira.pdf: 2679291 bytes, checksum: 45f07178e07bd1ba891d59c35b4f71a7 (MD5) Previous issue date: 2017-03-30 / In a scenery of lack of financial and human resources for the protected areas management, and great anthropic pressure in the territory around them, the mosaics of protected areas rise as a strategies to enforce their implementation and improve their management. By involving protected areas from different spheres of government, private protected areas, and representatives of civil society, mosaics are an integrated management figure of the territory that requires great effort of articulation and present a singular complexity for a management which is indeed participatory. The mosaics are managed by councils composed of representatives of government and civil society, with the conduction by a coordination and executive secretariat. Often, the lack of financial and human resources dedicated to its management makes the work of mosaics of protected areas intermittent. This leads to its destructuring and reduces its capacity of action and articulation for environmental management of the territory. Furthermore, as an instrument of public policy, it is important that the effectiveness of the mosaics be periodically evaluated and improved. This study aims to evaluate this management effectiveness and verify the common potentials and challenges in the management of Mosaics of Protected Areas. This evaluation was made by applying the Gidsick?s protocol (2013), adapted by Hermmann e Costa (2015). The results showed that the Central Fluminense and Mico-le?o-dourado mosaics show medium effectiveness, the Carioca and Bocaina mosaics show low effectiveness and the Mantiqueira mosaic shows no effectiveness on its management. Besides that, all of them show to be effective on their governance, but with serious difficulties in the management scope, which affects the capacity of execution and effectiveness of the sociodiversity and biodiversity aspects. Comparisons were made between the mosaics studied to support the elaboration of proposals for their improvement, using cluster analysis and a qualitative matrix of effectiveness. The proposals developed should be discussed and accepted by the mosaic councils and adapted by them so that they can be implemented. The strengthening of mosaics will only be achieved through actions involving a real partnership between government and civil society, with a division of responsibilities and activities so that this conservation tool can function efficiently. However, it is essential that the government and civil society take joint responsibility for this conservation instrument to function efficiently. / Em um cen?rio de car?ncia de recursos financeiros e humanos para a gest?o de unidades de conserva??o, e de grande press?o antr?pica nos territ?rios que as envolvem, os Mosaicos de ?reas Protegidas surgem como uma das estrat?gias para fortalecer a implementa??o e aprimorar a gest?o das mesmas. Por envolver Unidades de Conserva??o de diferentes esferas de governo, ?reas particulares e representantes da sociedade civil, os mosaicos s?o uma figura de gest?o integrada do territ?rio que exige grande esfor?o de articula??o e apresentam uma complexidade singular para a gest?o participativa de fato. Os mosaicos s?o geridos por colegiado composto por representantes do governo e da sociedade civil, com a condu??o por uma coordena??o e secretaria executiva. Muitas vezes, a falta de recursos financeiros e humanos dedicados ? sua gest?o faz com que o trabalho dos mosaicos de ?reas protegidas se mostre intermitente. Isto leva ? sua desestrutura??o e reduz sua capacidade de atua??o e articula??o para gest?o ambiental do territ?rio. Al?m disso, como instrumento de pol?tica p?blica, ? importante que a efetividade dos mosaicos seja periodicamente avaliada e melhorada. Este estudo visa avaliar a efetividade de gest?o e verificar as potencialidades e os desafios comuns na gest?o dos Mosaicos de ?reas Protegidas no estado do Rio de Janeiro. Esta avalia??o foi realizada com base no Protocolo de Gidsicki (2013), adaptado por Hermmann e Costa (2015). Os resultados mostraram que os mosaicos Central Fluminense e Mico Le?o Dourado apresentam efetividade m?dia, Carioca e Bocaina efetividade baixa, e Mantiqueira n?o apresenta efetividade. Apesar disso, todos se mostram efetivos no aspecto de governan?a, mas com dificuldades no ?mbito gest?o, o que afeta a capacidade de execu??o e a efetividade nos ?mbitos sociodiversidade e biodiversidade. Foram tra?adas compara??es entre os mosaicos estudados para embasar a elabora??o de propostas para o seu fortalecimento, utilizando an?lise de agrupamento e matriz qualitativa de efetividade. As propostas desenvolvidas devem ser discutidas e aceitas pelos conselhos de mosaico e adaptadas por eles para que possam ser implementadas. O fortalecimento dos mosaicos s? ser? alcan?ado por meio de a??es que envolvam uma parceria real entre governo e sociedade civil, com divis?o de responsabilidades e atividades para que este instrumento de conserva??o possa funcionar de maneira eficiente.

Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-08-14T12:35:45Z No. of bitstreams: 1 2017 - Cristiana Maia de Oliveira.pdf: 3631492 bytes, checksum: d4d9d115590b3750ed24bebb16823dea (MD5) / Made available in DSpace on 2018-08-14T12:35:47Z (GMT). No. of bitstreams: 1 2017 - Cristiana Maia de Oliveira.pdf: 3631492 bytes, checksum: d4d9d115590b3750ed24bebb16823dea (MD5) Previous issue date: 2017-08-25 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Among the main diseases which affects tomato plants there is Fusarium wilt caused by Fusarium oxysporum f. sp. lycopersici (FOL). Control of this disease is difficult due to the farmer?s specialization in the crop, pathogen ability to survive in the soil for long periods and physiological specialization of the pathogen in races. Three races of the pathogen have been described in Brazil, 1, 2 and 3, being the 3 of more restricted occurrence. The main strategy to control this disease is the use of resistant cultivars to the races present in the region. Nova Friburgo, RJ, an important tomato producing region during the summer, shows serious problems with plant diseases caused by common soil pathogens and soil management. For this reason, the present work was developed based on the collection of soil and plants samples in 41 farm family units, aiming to study different aspects related to Fusarium wilt in the region. The presentation of the work and the results obtained was divided into four chapters. In Chapter 1, a survey on the occurrence of the disease in the farm unities and identification of the predominant races was presented. In Chapter 2, studies on the incidence and distribution of the disease, as well as, evaluation of the most planted cultivars for resistance to the three races of FOL was presented. In the Chapter 3, we have showed studies on the management practices adopted by the farmers and their relations with soil fertility, plant nutrition and disease severity. Finally, in Chapter 4, 100 tomato accessions were evaluated regarding cultivar resistance to the three races of the pathogen. The accessions were obtained in the germplasm collection of the Department of Crop Science of the UFRRJ. Among the main results, we could identify the generalized occurrence of race 3 of FOL in the region, as well as, that most of the planted cultivars are susceptible to this race. The management practices adopted by the farmers contribute to the dissemination and survival of the pathogen the selection of race 3 due to the use of resistant cultivars to races 1 and 2 only. Finally, from the tomato accessions evaluated, five were resistant to races 1 and 2 of FOL and no resistant access to race 3 was identified / Dentre as principais doen?as do tomateiro est? a murcha-de-fus?rio causada por Fusarium oxysporum f. sp. lycopersici (FOL). O seu controle ? dificultado pelo cultivo sucessivo do tomateiro (Solanum lycopersicum L.) por produtores especializados na cultura, pela capacidade de sobreviv?ncia do pat?geno no solo por longos per?odos e pela presen?a de ra?as do pat?geno. At? ent?o j? foram descritas tr?s ra?as do pat?geno no Brasil (1, 2 e 3) sendo a ra?a 3 de ocorr?ncia mais restrita. A principal estrat?gia para controle da doen?a ? o uso de cultivares resistentes ?(s) ra?a(s) presentes na regi?o. O munic?pio de Nova Friburgo, RJ, importante regi?o produtora de tomate no ver?o, apresenta s?rios problemas com doen?as causadas por pat?genos habitantes do solo, que se intensificam devido a pr?ticas inadequadas de manejo de solo. Diante disto, desenvolveu-se o presente trabalho tendo como base a coleta de amostras de solo e de plantas em 41 unidades familiares visando estudar diferentes aspectos relacionados ? murcha-de-fus?rio na regi?o. A apresenta??o do trabalho e dos resultados obtidos foi dividida em quatro cap?tulos. No Cap?tulo 1, s?o apresentados estudos com o levantamento sobre a ocorr?ncia da doen?a nas propriedades e de identifica??o das ra?as predominantes. No Cap?tulo 2, s?o apresentados estudos sobre a incid?ncia e distribui??o da doen?a e avalia??o das cultivares mais plantadas quanto a resist?ncia ?s tr?s ra?as de FOL. No Cap?tulo 3, s?o apresentados os estudos sobre as pr?ticas de manejo adotadas pelos produtores e as suas rela??es com a fertilidade do solo, nutri??o das plantas e severidade da doen?a. E finalmente, no Cap?tulo 4 ? descrita a avalia??o de cerca de 100 acessos de tomateiro da cole??o de germoplasma do Departamento de Fitotecnia da UFRRJ quanto ? resist?ncia ?s tr?s ra?as do pat?geno. Entre os principais resultados obtidos pode-se destacar a constata??o de ocorr?ncia generalizada da ra?a 3 de FOL na regi?o e a confirma??o de que a maioria das cultivares plantadas s?o suscet?veis a esta ra?a. Constatou-se, ainda, que as pr?ticas de manejo adotadas pelos produtores contribuem para a dissemina??o e sobreviv?ncia do pat?geno e para sele??o da ra?a 3 devido ao uso de cultivares resistentes ?s ra?as 1 e 2. Por fim, na avalia??o dos acessos de tomateiro da UFRRJ, identificaram-se cinco acessos resistentes ?s ra?as 1 e 2 de FOL e nenhum acesso resistente ? ra?a 3.

Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-08-16T14:12:02Z No. of bitstreams: 1 2017 - Gerhard Valkinir Cabreira.pdf: 1076645 bytes, checksum: 61bdbca123cd46ef5ee16794ef55fd17 (MD5) / Made available in DSpace on 2018-08-16T14:12:02Z (GMT). No. of bitstreams: 1 2017 - Gerhard Valkinir Cabreira.pdf: 1076645 bytes, checksum: 61bdbca123cd46ef5ee16794ef55fd17 (MD5) Previous issue date: 2017-02-17 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / One of the ways to promote forest restoration is through the planting of shrub and tree species for the formation of forest stands. For this, it is necessary to obtain quality seedlings, as it will provide greater capacity to withstand the adverse conditions found in the field; and this quality is closely related to the choice of container type and substrate. Among the products with potential of use as substrate for the production of the forest seedlings is the stabilized sewage sludge (biosolid). A solid waste from Sewage Treatment Plants, rich in organic matter and nutrients, which allows an increase in nursery production, cost reduction and an adequate form of solid waste recycling. In this context, the first part of this study had the objective of evaluating the growth of seedlings of three forest species produced in tubes of 110 and 280 cm3, with increasing doses of controlled release fertilizer applied to biosolids as substrate base. Also, the survival and initial growth of these seedlings after planting were evaluated. In this analysis, the results showed that the seedlings of the three species responded positively to the addition of controlled release fertilizer to the biosolids. Field planting showed good survival and seedling growth, indicating that it was better to produce seedlings of the three species in 280 cm3 tubes with 3 kg of controlled release fertilizer N-P-K (15-09-12) per m3 of biosolids, applied at the time of filling of the tubes. From the results of the biosolids in the nursery, the objective was to evaluate the use of biosolids as fertilizer in field conditions, comparing them to the use of mineral fertilization, using two forest species with controlled growth and response. In the first months after planting, there was basically no significant difference between the use of biosolids and mineral fertilization / Uma das maneiras de impulsionar a restaura??o florestal ? com o plantio de esp?cies arbustivas e arb?reas para a forma??o dos povoamentos florestais. Para isso, faz-se necess?rio a obten??o de mudas de qualidade, pois ir? proporcionar maior capacidade de resistirem ?s condi??es adversas encontradas no campo; e essa qualidade est? intimamente relacionada ? escolha do tipo de recipiente e do substrato. Dentre os produtos com potencial de uso como substrato para produ??o das mudas florestais tem-se o lodo de esgoto estabilizado (bioss?lido). Um res?duo s?lido oriundo das Esta??es de Tratamento de Esgoto (ETEs), rico em mat?ria org?nica e nutrientes e que possibilita aumento na produ??o dos viveiros, diminui??o de custos, al?m de constituir uma forma adequada de reciclagem de res?duos s?lidos. Nesse contexto, a primeira parte desse estudo teve por objetivo avaliar o crescimento de mudas de tr?s esp?cies florestais produzidas em tubetes de 110 e de 280 cm3, com doses crescentes de fertilizante de libera??o controlada N-P-K (15-09-12) aplicados ao bioss?lido como substrato base. Tamb?m, foi avaliado a sobreviv?ncia e crescimento inicial destas mudas ap?s plantio. Nessa an?lise, os resultados mostraram que as mudas das tr?s esp?cies responderam positivamente ao acr?scimo de fertilizante de libera??o controlada junto ao bioss?lido. O plantio em campo apresentou boa sobreviv?ncia e crescimento das mudas, indicando ser melhor produzir mudas das tr?s esp?cies, em tubetes de 280 cm3 com 3 kg de fetilizante de libera??o controla N-P-K (15-09-12) por m3 de bioss?lido, aplicados na ?poca de enchimento dos tubetes. A partir dos resultados que o bioss?lido apresentava no viveiro, buscou-se avaliar o uso do bioss?lido como aduba??o de plantio em condi??es de campo, comparando ao uso de fertiliza??o mineral, utilizando duas esp?cies florestais de crescimento e resposta controlada. Nos primeiros meses ap?s o plantio, basicamente n?o houve diferen?a significativa entre o uso de bioss?lido e fertiliza??o mineral

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-08-20T12:37:22Z No. of bitstreams: 1 2010 - Raquel Duarte da Costa Cunha Bandeira.pdf: 1478855 bytes, checksum: f7637b4df6dd802e4e0003f4fb48d8cd (MD5) / Made available in DSpace on 2018-08-20T12:37:22Z (GMT). No. of bitstreams: 1 2010 - Raquel Duarte da Costa Cunha Bandeira.pdf: 1478855 bytes, checksum: f7637b4df6dd802e4e0003f4fb48d8cd (MD5) Previous issue date: 2010-09-24 / Coffee is an extremely complex food matrix and has an important role in the world?s economy, especially in producing and exporting countries like Brazil. However this product may suffer from technical barriers imposed for exportation because of the possible presence of ochratoxin A, which is nefrotoxic and carcinogenic mycotoxin found in many foods including coffee. The aim of this study was to implement chemical metrology concepts in the development and validation of Liquid Chromatography with Mass Spectrometry in tandem (CLAE-EM/EM) method for identification and quantification of ochratoxin A in green and roasted coffee estimating uncertainty of measurement according to directive 2002/657/EC and Inmetro guidelines (DOC-CGCRE-2010). The extraction method was based on Pittet (1998) and chromatographic parameters were: flow rate of 0.3 mL/min, mobile phase 80:20 water trifluoracetic acid 0.05 %: methanol trifluoracetic acid 0.05 %, injection volume of 50 PL, injection mode Full loop, isocratic mode. The column was Synergi Hydro C18. The mass spectrometry parameters were optimized and transitions selected based on the colision energies monitored were m/z 404 >358 (-10.5 V) and m/z 404 >239 (-20.5 V). From the validation procedure, methods were considered seletive. The evaluation and verification of matrix effect was performed by comparing variances and averages using F and t test. Value of Fcalculated for green coffee (25.2152) and roasted coffee (104.0353), were higher than Ftable (4.0426). Value of t calculated for green (5.0214) and roasted coffee (10.1997) were higher than ttable (2.0106). Both methods were considered linear in the working range of calibration curve with linear correlation coefficients (r) of 0.98188 and 0.91754 for green and roasted coffee, respectively.The quantification and detection limits were 1.2 Pg/kg and 3.0 Pg/kg; 0.36 Pg/kg and 1.0 Pg/kg, for green and roasted coffee respectively. The average recoveries, RSDr and RSDR were in range of 90.45 ? 108.81 %, 5.39 ? 9.94 % and 2.20 ? 14.34 % for green coffee and 89.02 ? 108.85 %, 2.43 ? 13.73 % and 12.57 ? 17.84 % for roasted coffee. All results obtained were considered within acceptable levels according to literature. Measurement value and expanded uncertainties (U) for ochratoxin A were mass fraction w = (11.50 ? 1.11) and w = (4.63 ? 0.63) for green coffee and roasted coffee. Both methods developed and validated using a high sensitivity technique, that allowed detection, confirmation and quantification of ochratoxin A in green and roasted coffee with a estimated uncertainty of measurement, and in the future these methods can be used to help overcome possible technical barriers imposed for exportation of Brazilian coffee. / O caf? constitui uma matriz extremamente complexa e tem importante papel na economia mundial, especialmente nos pa?ses produtores e exportadores como o Brasil. No entanto tem sido alvo de barreiras t?cnicas devido a uma subst?ncia denominada ocratoxina A, micotoxina potencialmente nefrot?xica e nefrocarcinog?nica encontrada em muitos alimentos inclusive o caf?. O presente trabalho tem como objetivo implantar os conceitos da metrologia qu?mica no desenvolvimento, e valida??o do m?todo para identifica??o e quantifica??o de ocratoxina A no caf? verde e caf? torrado estimando a incerteza da medi??o e utilizando a t?cnica de Cromatografia L?quida acoplada a Espectrometria de Massas em s?rie (CLAE-EM/EM) seguindo os crit?rios da diretiva EC-657/2002 e o documento orientativo do Inmetro (DOCCGCRE- 2010). A metodologia de extra??o baseou-se em Pittet (1998) e os par?metros cromatogr?ficos foram: fluxo de 0,3 mL/min, fase m?vel 80:20 ?gua ?cido trifluoroac?tico 0,05%: metanol ?cido trifluoroac?tico 0,05 %, volume de inje??o de 50 PL, com o modo de inje??o Full loop e sistema de elui??o isocr?tico. A coluna utilizada foi Synergi Hydro C18. As condi??es do espectr?metro de massas foram otimizadas e a transi??o selecionada de acordo com suas energias de colis?o foram m/z 404 >358 (-10,5 V) e m/z 404 >239 (-20,5 V). A partir da valida??o os m?todos propostos foram considerados seletivos, a avalia??o e comprova??o do efeito matriz foi realizada atrav?s da compara??o das vari?ncias e das m?dias atrav?s do teste F e teste t. O Fcalculado para o m?todo caf? verde (25,2152) e caf? torrado (104,0353), apresentaram valores maiores que o Ftabelado (4,0426). O tcalculado para o caf? verde (5,0214) e torrado (10,1997) apresentaram valores superiores ao ttabelado (2,0106). Os m?todos foram considerados lineares em toda a faixa de trabalho da curva de calibra??o com os coeficientes de determina??o linear (r) de 0,98188 e 0,91754 para matriz caf? verde e caf? torrado, respectivamente. O limite de quantifica??o e detec??o para os m?todos propostos foram de 1,2 Pg/kg e 3,0 Pg/kg para caf? verde e 0,36 Pg/kg e 1,0 Pg/kg para caf? torrado. Os valores das recupera??es m?dias, DPRr e DPRR variaram na faixa de 90,45 - 108,81 %, 5,39 - 9,94 % e 2,20 - 14,34 % para caf? verde; e de 89,02 - 108,85 %, de 2,43 - 13,73 % e 12,57 - 17,84 %, para caf? torrado. Todos os resultados obtidos encontram-se dentro dos limites comumente aceit?veis na literatura. Todos os resultados de medi??o e as incertezas expandidas (U) para ocratoxina A foram as fra??es m?ssicas W = (11,50 ? 1,11) Pg/kg e W = (4,63 ? 0,63) Pg/kg para caf? verde e caf? torrado, respectivamente. Os m?todos desenvolvidos e validados utilizaram t?cnica de elevada sensibilidade, permitindo a detec??o, confirma??o e a quantifica??o de ocratoxina A no caf? verde e caf? torrado com c?lculo da incerteza, podendo auxiliar futuramente na supera??o das barreiras t?cnicas para exporta??o do caf? brasileiro.

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-08-21T14:27:57Z No. of bitstreams: 1 2010 - Silvia Helena Loli Bezerra.pdf: 2012785 bytes, checksum: 8d34e1d0af956dbaa779688bd738d14d (MD5) / Made available in DSpace on 2018-08-21T14:27:57Z (GMT). No. of bitstreams: 1 2010 - Silvia Helena Loli Bezerra.pdf: 2012785 bytes, checksum: 8d34e1d0af956dbaa779688bd738d14d (MD5) Previous issue date: 2010-09-03 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior, CAPES, Brasil. / The purpose of this research was to investigate the contribution of environmental education practices (EE), on the educational project of the Technical College of Universidade Federal Rural do Rio de Janeiro (CTUR). Initially, an exploratory study was done with students of the Organic Farming high school and some school staff, using short videos, visits to the College's campus to observe the school?s garbage, and a guided tour on the city's garbage deposit as elements of motivation. After these activities, a survey was done of the participants? environmental awareness, through free demonstrations via reports about what was seen and discussed in these activities, followed by a brainstorming with presentation of possible solutions to the school problems. Further, a semistructurade questionnaire was applied with open questions, in which the interviewee had freedom to write about the proposed issue, and pre-formulated closed questions, whereby highlighted the best answers which represented their opinion. 65 students and members of staff filled questionnaire up. The questionnaires were analyzed statistically by dispersion and by the results, it was noted that the arguments of the interviewers were typically Cartesian. This reductive vision limits their ability to see the problem in a systemic way, because they are arguments that show a mechanistic design of the universe, whose laws, according to this conception, could be in theory, objectively learned through scientific procedures. These structures of thought are not exclusive of interviewees, particularly among students. They were certainly consolidated in family conviviality, neighborhood relationship and in other groups of relationship, including the school. Within this perspective, it is understood that EE has the purpose to disarm these structures of thought that perceive the relationship man/nature within a binary mechanics in formal logic and rationalist. This research used a special population that can be considered as been representative of the student elite of the country. So, they are not generalized conclusions about the set of the Brazilian population. If this premise is true, this finding is that the situation is worrying since the vast majority of Brazilians surely has an instructional level lower than the interviewees in this research, supporting the argument that the results obtained are representative and mirror the Brazilian reality, what sustain the urgency of to implement EE in the school?s curriculum across the country. The analysis of the results obtained in this research allowed an interpretation and a more precise and detailed diagnosis of the EE framework in its most varied aspects under CTUR. As a result, could be identified misconceptions and faults, resulted primarily from a shallow approach of the EE at the institution. Was given a set of epistemological suggestions, to assist to the institution's Pedagogical Political Project and to the effective implementation of EE, understanding that the teacher's target is not only complement this suggestion, but also find answers to the questions that issue evokes and thus, propose alternative ways of thinking and acting. / O trabalho teve por objetivo investigar a contribui??o de pr?ticas de Educa??o Ambiental (EA), no projeto pedag?gico do Col?gio T?cnico da Universidade Federal Rural do Rio de Janeiro (CTUR). Inicialmente, foi feito um estudo explorat?rio com os alunos do terceiro ano do Ensino M?dio em Agropecu?ria Org?nica e uma parte dos funcion?rios da escola, utilizando-se, como elementos de motiva??o, v?deos de curta dura??o, visita pelas instala??es do col?gio para observa??o de um problema ambiental espec?fico - o lixo comum, e visita guiada ao dep?sito de lixo da cidade de Serop?dica. Ap?s essas atividades, foi feito um levantamento da percep??o ambiental dos participantes, mediante manifesta??es livres por meio da elabora??o de relat?rios do que foi visto e discutido nas atividades, seguido de uma exposi??o de id?ias, com apresenta??o de solu??es poss?veis para o problema do lixo escolar. ? continua??o, foi aplicado um question?rio semiestruturado com quest?es abertas, nas quais o entrevistado manifestou-se livremente por escrito sobre o tema proposto, e com quest?es fechadas pr?-formuladas, mediante as quais assinalava respostas que melhor representavam sua opini?o. Responderam ao question?rio 65 entrevistados, entre estudantes e funcion?rios. Os question?rios foram analisados estatisticamente por dispers?o e pelos resultados, observou-se que os argumentos dos entrevis tados foram tipicamente cartesianos. Essa vis?o reducionista limita a capacidade de enxergar o problema de uma forma sist?mica, pois s?o argumentos que apresentam uma concep??o mecanicista do universo, cujas leis, de acordo com essa concep??o, poderiam em tese, ser aprendidas objetivamente mediante procedimentos cient?ficos. Essas estruturas de pensamento n?o s?o exclusivas dos entrevistados, sobretudo dos estudantes. Elas foram certamente consolidadas no conv?vio familiar, nas rela??es de vizinhan?a e nos demais grupos de relacionamento, inclusive na escola. Dentro desta perspectiva, entende-se que ? EA cabe a tarefa de desarmar essas estruturas de pensamento que percebem a rela??o homem/natureza dentro de uma mec?nica bin?ria na l?gica formal e racionalista. Esta pesquisa serviu-se de uma popula??o especial que pode ser considerada representativa da elite discente do pa?s. Portanto, n?o se tratam de conclus?es generalizadas sobre o conjunto da popula??o brasileira. Se essa premissa ? verdadeira, a constata??o ? de que a situa??o ? preocupante, pois a grande maioria dos brasileiros seguramente encontra-se em condi??es instrucionais menos privilegiadas do que os participantes dessa pesquisa, sustentando o argumento de que os resultados obtidos s?o representativos e espelham a realidade brasileira, o que subsidiaria a prem?ncia na implementa??o da EA no curr?culo das escolas de todo o pa?s. A an?lise dos resultados obtidos na pesquisa permitiu uma interpreta??o e um diagn?stico mais preciso e pormenorizado do quadro da EA nos seus mais variados aspectos no ?mbito do CTUR. Como resultado, puderam-se identificar equ?vocos e falhas, decorrente principalmente de uma abordagem superficial da EA na institui??o. Foi dado um conjunto de sugest?es, de car?ter epistemol?gico, para auxiliar no Projeto Pol?tico Pedag?gico da institui??o e na implementa??o efetiva da EA, entendendo que a tarefa do professor ?, n?o s? complementar essa sugest?o, como tamb?m encontrar respostas ?s provoca??es que o tema evoca e, assim, propor formas alternativas de pensamento e de atua??o.

Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-08-30T16:36:02Z No. of bitstreams: 1 2009 - Aldir Carlos Silva.pdf: 1230710 bytes, checksum: 56dbab398ff37045b73bd259ab1a15ac (MD5) / Made available in DSpace on 2018-08-30T16:36:02Z (GMT). No. of bitstreams: 1 2009 - Aldir Carlos Silva.pdf: 1230710 bytes, checksum: 56dbab398ff37045b73bd259ab1a15ac (MD5) Previous issue date: 2009-03-06 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq / Aluminum tolerance studies in seedlings of Passion fruit (cvs. IAC-273/277, IACPaulista, IAC-275, FB-100) and Carica papaya (cvs.Taiung, Golden, Gran Golden, Baixinho de Santa Amalia) were performed in a growth chamber at the Laboratories of Chemistry of the Rhizosphere and Seeds of the Department of Fitotecnia, of University Federal Rural of Rio Janeiro, Institute of Agronomy. Experiments with different concentrations of Al were conducted in nutrient solution simple (with Ca) and complete, with the aims to analyze the tap root length, ratio of root lengths, relative root elongation, diameter of root and stem and effect of stains. Also were conducted experiments with seeds soaked in different concentration of Al to verify the percentage of germination, seedlings normal and abnormal. The use of simple nutrient solution was not satisfactory to shown the performance of seedlings of papaya. In passion fruit both nutrient solutions can be used in short term experiment. Over the concentration of 160?M of Al occurred effect of toxicity in root of seedlings of passion fruit and papaya, but at concentrations lower that 80?M there were stimulus of growth. The tap root length was the more efficient parameter to compare root toxicity. The soaking of seeds in the solution of aluminum did not affect the germination, root tap emission and the growth of seedlings until 1280?M. With the increased of time of contact with the Al solution, the young roots have been injured especially in papaya seedlings. The use of stains pyrocatechol violet and hematoxylin were both efficient to determinate the aluminum tolerance in papaya and passion fruit, but just pyrocatechol violet could compare the doses used, produced a color gradient with increasing concentration of aluminum. With the use of hematoxylin was only possible to separate the high concentrations of low concentrations of aluminum. The best passion fruit cultivar was IAC 273/277and papaya was Tainung / Os estudos da toler?ncia ao alum?nio em pl?ntulas de maracuj? (cvs. IAC-273/277, IACPaulista, IAC-275, FB-100) e mam?o (cvs.Tainug, Golden, Gran Golden, Baixinho de Santa Am?lia) foram realizados, em c?mara de crescimento nos Laborat?rios de Qu?mica da Rizosfera e Laborat?rio de Analise de Sementes, Departamento de Fitotecnia, Instituto de Agronomia da Universidade Federal Rural Rio de Janeiro. Foram realizados experimentos com diferentes concentra??es de alum?nio em solu??o nutritiva simples (com c?lcio) e completa, para analise do crescimento radicular utilizando os par?metros comprimento radicular, taxa de crescimento radicular, elonga??o radicular relativa, di?metro do colo, di?metro de ?pice da raiz principal bem como testes com corantes. Foi tamb?m realizado estudos do efeito da embebi??o das sementes com solu??es de alum?nio para verificar o efeito na porcentagem de germina??o, pl?ntulas normais e anormais, e n?o germinadas. O uso da solu??o nutritiva simples para realizar testes de curta dura??o de contacto ao alum?nio, n?o foi satisfat?rio para mam?o, sendo mais adequado o uso de solu??o nutritiva completa. Em maracuj?, ambas as solu??es podem ser utilizadas. As pl?ntulas de maracuj? crescidas em solu??o simples com o aumento do tempo de contacto com alum?nio na solu??o, as ra?zes ficaram endurecidas. Em concentra??es acima de 160?M de alum?nio, ocorreu efeito fitotoxico, contudo em concentra??es menores que 80?M ocorreu at? aumento do crescimento radicular para mam?o e maracuj?. O comprimento radicular foi o mais eficiente par?metro indicador da toler?ncia ao alum?nio. A embebi??o das sementes em alum?nio n?o afetou a germina??o a emiss?o da raiz principal e o crescimento da pl?ntula at? a concentra??o da solu??o de embebi??o de 1280?M, mas a medida que aumentou o tempo de contato e a concentra??o de alum?nio, as ra?zes rec?m emitidas sofreram danos, principalmente as de pl?ntulas de mam?o. O uso dos corantes qu?micos violeta de pirocatecol e hematoxilina foram eficiente na determina??o da toler?ncia ao alum?nio em maracuj? e mam?o, mais somente o violeta de pirocatecol permitiu comparar as doses entre si, gerando um gradiente de colora??o com o aumento da concentra??o de alum?nio, com o uso da hematoxilina s? foi poss?vel separar as concentra??es altas das concentra??es baixas de alum?nio. As melhores cultivares nas condi??es testadas foi a IAC 273/277 de maracuj? e a cv Tainung de mam?o

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-09-06T18:31:39Z No. of bitstreams: 1 2017 - Marcelo Vin?cius da Silva.pdf: 1010543 bytes, checksum: 23139cdc72e275133694cd8cbab18280 (MD5) / Made available in DSpace on 2018-09-06T18:31:39Z (GMT). No. of bitstreams: 1 2017 - Marcelo Vin?cius da Silva.pdf: 1010543 bytes, checksum: 23139cdc72e275133694cd8cbab18280 (MD5) Previous issue date: 2017-06-02 / CAPES / CNPq / Treated sewage sludge, called biosolid, contains high levels of macronutrients and organic matter, potentially being a great input for agricultural and forestry use. However, studies on the growth response of native forest tree species to biosolids fertilization are still very incipient. The objective of this study was to evaluate the effects of sewage sludge biosolids on the growth of seven Atlantic Forest tree species, commonly used in restoration plantations. In a field experiment in Serop?dica, RJ, was evaluated the effect of four doses of biosolids (0, 2, 4 and 8 L per planting pit) and a treatment with mineral fertilization on the growth of seven tree species. During 19 months, growth (height and diameter at soil height - DNS) and survival of the species Schinus terebinthifolius Radd were monitored. (Aroeira), Lafoensia glyptocarpa KOEHNE (mirindiba), Inga laurina (Sw.) Willd. (Ingla-laurine), Senna multijuga (Rich.) (Pau-cigarra), Genipa americana (Vell.) Brenan (genipapo). In a second planting, under the same treatments, the species Peltophorum dubium (Spreng.) Taub (dry flour) and Enterolobium contortisiliquum (Vell.) Morong (black ear) were monitored for 9 months. At the end of the monitoring period, the crown diameter and macronutrient leaf contents were also evaluated. The dose of up to 4 L of biosolid did not compromise the survival of the plants in the field. However, under the mineral fertilizer treatment, all plants of S. multijuga, 80% of I. laurina and 67% of plants of L. glyptocarpa, probably due to the effect of fertilizer salts on soil water potential Conjugated to the occurrence of a drought period after planting. The increase of the biosolid dose corresponded to a linear increase of the growth of the DNS of S. terebinthifolius, and of the growth in height, DNS and cup diameter of P. dubium. However, application of the 8 L dose of biosolids reduced up to 50% growth of S. multijuga. The species I. laurina, G. americana and E. contortisiliquum showed no response to biosolid application. Mineral fertilization significantly reduced the growth of S. terebinthifolius (p <0.05) and a similar trend was observed for G. americana, L. glyptocarpa and P. dubium (p <0.17). However, this same treatment increased the height growth of E. contortisiliquum by 70% in relation to the non-fertilized control. In general, the treatments did not significantly alter the macronutrient contents of the evaluated species. A clear exception was the increase of the Ca content in plants of L. glyptocarpa that received biosolids, and the increase of the N content in P. dubium treated with mineral fertilization. It is concluded that the different native forest species present different responses to the biosolid application. The dose of 4 L of biosolid was the only one that had no negative effect or promoted the growth of the Atlantic Forest tree species evaluated. It is recommended that similar studies be carried out on other soil types with other species in order to refine the recommendation of the use of biosolids in forest restoration plantations. Finally, caution is suggested in the use of mineral fertilizers for plantations with native species, as this practice may result in mortality or slow the growth of some species. / O lodo de esgoto tratado, denominado bioss?lido, cont?m altos teores de macronutrientes e mat?ria org?nica sendo, potencialmente, um ?timo insumo para utiliza??o agr?cola e florestal. Entretanto, estudos sobre a resposta de crescimento de esp?cies arb?reas florestais nativas ? aduba??o com bioss?lido ainda s?o muito incipientes. O objetivo desse estudo foi avaliar os efeitos proporcionados pela aplica??o de bioss?lido de lodo de esgoto sobre o crescimento de sete esp?cies arb?reas da Mata Atl?ntica, comumente utilizadas em plantios de restaura??o. Em um experimento de campo em Serop?dica, RJ, foi avaliado o efeito de quatro doses de bioss?lido (0, 2, 4 e 8 L por cova de plantio) e um tratamento com fertiliza??o mineral sobre o crescimento de sete esp?cies arb?reas. Ao longo de 19 meses foi monitorado o crescimento (altura e di?metro ? altura do solo ? DNS) e a sobreviv?ncia das esp?cies Schinus terebinthifolius Radd. (aroeira), Lafoensia glyptocarpa KOEHNE (mirindiba), Inga laurina (Sw.) Willd. (ing?-laurina), Senna multijuga (Rich.) (pau-cigarra), Genipa americana (Vell.) Brenan (jenipapo). Em um segundo plantio, sob os mesmos tratamentos, foi monitorado por 9 meses as esp?cies Peltophorum dubium (Spreng.) Taub (farinha-seca) e Enterolobium contortisiliquum (Vell.) Morong (orelha-de-negro). Ao final do per?odo de monitoramento, foi avaliado tamb?m o di?metro de copa e os teores foliares de macronutrientes. A dose de at? 4 L de bioss?lido n?o comprometeu a sobreviv?ncia das plantas em campo. Por?m, sob o tratamento com fertilizante mineral houve mortalidade de todas as plantas de S. multijuga, 80% de I. laurina e 67% das plantas de L. glyptocarpa, provavelmente em raz?o do efeito dos sais do fertilizante sobre o potencial h?drico do solo conjugado ? ocorr?ncia de um per?odo de estiagem ap?s o plantio. O aumento da dose de bioss?lido correspondeu a um aumento linear do crescimento do DNS de S. terebinthifolius, e do crescimento em altura, DNS e di?metro de copa de P. dubium. Entretanto, a aplica??o da dose de 8 L de bioss?lido reduziu em at? 50% o crescimento de S. multijuga. As esp?cies I. laurina, G. americana e E. contortisiliquum n?o apresentaram resposta ? aplica??o de bioss?lido. A aduba??o mineral reduziu significativamente o crescimento de S. terebinthifolius (p<0,05) e tend?ncia similar foi observada para G. americana, L. glyptocarpa e P. dubium (p<0,17). Entretanto, esse mesmo tratamento aumentou em 70% o crescimento em altura de E. contortisiliquum em rela??o ao controle n?o adubado. Em geral, os tratamentos n?o alteraram significativamente os teores de macronutrientes foliares das esp?cies avaliadas. Uma clara exce??o foi o aumento do teor de Ca em plantas de L. glyptocarpa que receberam bioss?lido, e o aumento do teor de N em P. dubium tratado com aduba??o mineral. Conclui-se que as diferentes esp?cies florestais nativas apresentam respostas distintas ? aplica??o de bioss?lido. A dose de 4 L/cova de bioss?lido foi a ?nica que n?o teve efeito negativo ou promoveu o crescimento da das esp?cies arb?reas da Mata Atl?ntica avaliadas. Recomenda-se que estudos similares sejam efetuados em outros tipos de solo com outras esp?cies de modo refinar a recomenda??o do uso do bioss?lido em plantios de restaura??o florestal. Por fim, sugere-se cautela no uso de fertilizantes minerais para plantios com esp?cies nativas, pois esta pr?tica pode resultar em mortalidade ou retardar o crescimento de algumas esp?cies.

Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-09-13T17:03:37Z No. of bitstreams: 1 2017 - Gustavo Feitosa de Matos.pdf: 1844017 bytes, checksum: 0ed6966082e21d15123a12cd0e5777ef (MD5) / Made available in DSpace on 2018-09-13T17:03:38Z (GMT). No. of bitstreams: 1 2017 - Gustavo Feitosa de Matos.pdf: 1844017 bytes, checksum: 0ed6966082e21d15123a12cd0e5777ef (MD5) Previous issue date: 2017-02-23 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPQ / Recent molecular biology studies have indicated that bacteria of the genus Bradyrhizobium and Rhizobium may also play a role in the biological nitrogen fixation process (BNF) when associated with sugarcane. The use of Vigna unguiculata trap plants allowed obtaining a diverse collection of endophytic Bradyrhizobium spp. from sugarcane roots. The present work aimed to characterize a group of bacteria of the genus Bradyrhizobium from sugarcane roots, as well as to evaluate the ability of a representative strain of this group and an isolate of the genus Rhizobium to promote growth in this crop. To define the taxonomic position of the isolates of the group, phylogenetic analyzes were performed with the individual 16S rRNA, ITS, nodC and recA genes and multilocus sequence analysis (MLSA) involving four housekeeping genes (recA, dnaK, glnII and atpD), in four representative isolates (BR 10280T, BR 10266, BR 10555 and BR 10556). In addition, biochemical and morphophysiological tests were performed. Experiments in which the isolates P9-20 (BR 10280) (Bradyrhizobium sp.) and P5-2 (Rhizobium sp.) were inoculated in sugarcane seedlings were conducted in a greenhouse to evaluate the growth promoting effect of these isolates. Two harvests were performed at 30 and 75 days after transplanting (DAT). Among the analyzed variables were the budding speed index (BSI), dry mass and total nitrogen (N). Phylogenetic analyzes positioned the isolates in the superclade of B. japonicum in an independent branch close to B. huanghuaihaiense, a soybean micro-symbiont. Despite the proximity of the group under study to B. huanghuaihaiense, these isolates did not induce nodulation in Glycine max. In addition, unlike B. huanghuaihaiense, the new isolates induced nodule formation in Phaseolus vulgaris. In morphophysiological studies, significant differences were demonstrated between the representative isolates from this study and B. huanghuaihaiense. In the greenhouse experiment, an increase on BSI and root dry mass of the inoculated treatment with the P5-2 isolate was observed in the first harvest. In the second harvest, increments were found in the root dry mass and root volume, as well as in the total N of the roots and aerial part, in the treatment inoculated with P5-2, although no statistical difference was detected. These results of the characterization indicate that the sugarcane isolates of the genus Bradyrhizobium represent a new species of this genus. In relation to the greenhouse experiment, the isolate of the genus Rhizobium sp. presented potential as a growth promoter in the sugarcane crop. / Estudos recentes de biologia molecular indicaram que bact?rias do g?nero Bradyrhizobium e Rhizobium tamb?m podem ter um papel no processo de fixa??o biol?gica de nitrog?nio (FBN) quando associadas ? cana-de-a??car. O uso de plantas de Vigna unguiculata como ?isca? possibilitou a obten??o de uma cole??o diversa de Bradyrhizobium spp. endof?ticos a partir de ra?zes de cana-de-a??car. O presente trabalho teve como objetivo caracterizar um grupo de bact?rias do g?nero Bradyrhizobium proveniente de ra?zes de cana-de-a??car, assim como avaliar a capacidade de uma estirpe representante desse grupo e de um isolado do g?nero Rhizobium em promover efeito de crescimento nessa cultura. Para definir o posicionamento taxon?mico dos isolados do grupo, an?lises filogen?ticas foram realizadas com os genes individuais 16S rRNA, ITS, nodC e recA e an?lise de sequ?ncia de multilocus (MLSA) envolvendo quatro genes ?housekeeping? (recA, dnaK, glnII e atpD), em quatro isolados representantes (BR 10280T, BR 10266, BR10555 e BR 10556). Al?m disso, foram realizados testes bioqu?micos e morfofisiol?gicos. Experimento onde os isolados P9-20 (BR 10280) (Bradyrhizobium sp.) e P5-2 (Rhizobium sp.) foram inoculados em minitoletes de cana-de-a??car foi conduzido em casa de vegeta??o. Foram realizadas coletas aos 30 e 75 dias ap?s transplantio (DAT). Entre as vari?veis analisadas est?o o ?ndice de velocidade de brotamento (IVB), massa seca e Nitrog?nio (N) total. An?lises filogen?ticas posicionaram os isolados no super clado de B. japonicum em um ramo independente pr?ximo a B. huanghuaihaiense, um microssimbionte de soja. Apesar da proximidade do grupo em estudo com B. huanghuaihaiense, estes isolados n?o induziram nodula??o em Glycine max. Al?m disso, diferente de B. huanghuaihaiense, os novos isolados induziram a forma??o de n?dulos em Phaseolus vulgaris. Em estudos morfofisiol?gicos foram demostradas diferen?as significativas entre os isolados representantes do grupo em estudo e B. huanghuaihaiense. Em experimento em casa de vegeta??o, observou-se na primeira coleta um incremento sobre o IVB e massa seca da raiz no tratamento inoculado com o isolado P5-2, embora n?o tenham sido observadas diferen?as estat?sticas. Na segunda coleta, incrementos foram encontrados na massa seca de raiz e volume de raiz, assim como, no N total das ra?zes e parte a?rea, no tratamento incoculado com P5-2, embora n?o tenham apresentado diferen?a estat?stica. Massa seca da parte a?rea do tratamento inoculado com P5-2 apresentou incremento na primeira e segunda coleta, em rela??o aos controles, embora n?o tenha sido detectada diferen?a estat?stica. Os resultados da caracteriza??o do grupo indicam que os isolados de cana-de-a??car do g?nero Bradyrhizobium representam uma nova esp?cie desse g?nero. Em rela??o ao experimento em casa de vegeta??o, o isolado do g?nero Rhizobium sp. apresentou potencial como promotor de crescimento na cultura de cana-de-a??car

Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-09-18T12:48:44Z No. of bitstreams: 1 2017 - Ra?ssa Tamassia C?rtes.pdf: 2683408 bytes, checksum: 8cbfad45de6c298658d7e774a1167e8a (MD5) / Made available in DSpace on 2018-09-18T12:48:44Z (GMT). No. of bitstreams: 1 2017 - Ra?ssa Tamassia C?rtes.pdf: 2683408 bytes, checksum: 8cbfad45de6c298658d7e774a1167e8a (MD5) Previous issue date: 2017-04-25 / This study seeks to present the dynamic of forestry production in family farming properties, to comprehend their practice of usual management, to apprehend the producers? interests in forestry activities, and the capacity that these activities have to provide wood for the local market. The Serrana Region of Rio de Janeiro State was chosen as study area because in it land structure predominates small rural properties, of family farming. This Region has the second major reforestation area of the State. As the topic of family forestry production has been little discussed in academic level, this essay is an exploratory research, with a collective case study. The presence or absence of forestry activities in the small properties of the region, as well as the supply and the demand of wood products in local level was obtained through secondary data. The analysis of the family producers? silvicultural system, in terms of management and production costs, availed information collected through interviews with technicians and local farmers. The study showed that the forestry production in familiar farming in the Serrana Region has potential to supply the wood local market. The forestry activities has great value to diversify the rural landscape and combating illegal logging of tropical forests. There is still a lot of resistance to these activities by farmers, given the history of eucalyptus monoculture expansion. Other species with silvicultural potential, and suitable to the small and medium farmers management, should be studied to meet the market demands. The forest element must bring a ransom and a respect to the traditional management and the way the activities are performed into each farm, in the life of each family, in the way of more sustainable activities. / O presente estudo procura apresentar a din?mica da produ??o florestal em propriedades de agricultura familiar, no sentido de compreender a pr?tica do manejo usual nessas propriedades, perceber os interesses dos produtores nas atividades florestais, e a capacidade dessas atividades para abastecer o mercado local de madeira. A Regi?o Serrana do Estado do Rio de Janeiro foi escolhida como ?rea de estudo pois sua estrutura fundi?ria se caracteriza pela predomin?ncia de pequenas propriedades rurais, de produ??o principalmente familiar. Esta regi?o se destaca por ter a segunda maior ?rea de plantios de reflorestamento do Estado, e tem como foco principal o abastecimento do mercado local. Visto que o tema da produ??o florestal familiar tem sido pouco discutido no ?mbito acad?mico, este trabalho se caracteriza como uma pesquisa explorat?ria, a partir de um estudo de caso coletivo. A presen?a ou aus?ncia da atividade florestal nas pequenas propriedades da regi?o, bem como as rela??es de oferta e demanda de produtos madeireiros a n?vel local foram obtidas de dados secund?rios. J? a an?lise do sistema silvicultural utilizado pelos produtores, em termos de manejo e custos de produ??o, foi realizada a partir das informa??es obtidas dos depoimentos de t?cnicos e produtores locais. Neste trabalho, notou-se que a produ??o florestal que ocorre em propriedades de agricultura familiar na Regi?o Serrana apresenta potencial para abastecer o mercado local de madeira. As atividades florestais t?m grande import?ncia para a diversifica??o da paisagem rural e no combate ? extra??o ilegal de madeira nativa de florestas tropicais. Ainda h? muita resist?ncia a essas atividades por parte dos agricultores, visto o hist?rico da expans?o dos monocultivos de eucalipto. Outras esp?cies com potencial silvicultural, e adequadas ao sistema de manejo existente nas pequenas e m?dias propriedades, devem ser estudadas para atender as demandas do mercado. A inser??o do elemento florestal deve trazer um resgate e um respeito ao manejo tradicional e ? forma como as atividades s?o realizadas dentro de cada propriedade, na viv?ncia de cada fam?lia, no caminho em dire??o a atividades mais sustent?veis.

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-09-19T12:55:08Z No. of bitstreams: 1 2010 - M?nica Bomtempo Reis Soares.pdf: 1261572 bytes, checksum: ede0d7de0924bad5f0ee6da2940ba33c (MD5) / Made available in DSpace on 2018-09-19T12:55:08Z (GMT). No. of bitstreams: 1 2010 - M?nica Bomtempo Reis Soares.pdf: 1261572 bytes, checksum: ede0d7de0924bad5f0ee6da2940ba33c (MD5) Previous issue date: 2010-10-27 / This study aims to examine the practices of dissemination of entrepreneurial education and interdisciplinary teaching practices, as well as the performance in the J?nior company and business incubator in the technical course in agriculture in Rio Pomba Campus of the Federal Institute of Education, Science and Technology of the Southeast of Minas Gerais. Once the professionals should be prepared for the world of work and citizenship as an entrepreneur with vision for business opportunities, the implementation of entrepreneurship education in schools of professional technical and technological education should be based on developing entrepreneurial students? skills. For this model of entrepreneurship education takes form it will be necessary for the entrepreneurial culture to be part of the whole school community, agencies and sectors involved as well as society itself. The methodology used in this study was a case study using a questionnaire applied to teachers and graduates, in order to examine what teachers think about the entrepreneurial training of students in technical courses. As for the graduates it was sought to meet their technical background and importance of entrepreneurial training in the workplace. This research has also sought to describe the guidelines for integrated technical education, analyzing and proposing a new curriculum model, identifying the main problems of education within the institution and teaching practices that match a model of professional education focused on entrepreneurial training, stimulating entrepreneurial spirit and providing tools for students to find their place in the market as well as entrepreneurs. It can be observed that teachers agree that entrepreneurial training is important for students as well as being very important in today's job market. It appeared from the students that it lacked a specific discipline and/or the incorporation of content related to entrepreneurial training. It was also noted that experiments with the J?nior company and business incubator contribute to the formation, demonstrating the importance of these experiences for the development of entrepreneurship. The current array of technical course load is very high, leaving little time for additional activities, and little is focused on the entrepreneurial training. In short, it is suggested that the curriculum be restructured and the entrepreneurial practice be also enhanced in extracurricular activities. / Este trabalho tem por objetivo analisar as pr?ticas de difus?o da educa??o empreendedora e pr?ticas pedag?gicas interdisciplinares, bem como, a atua??o dos alunos na empresa J?nior e na incubadora de empresas no curso t?cnico em agropecu?ria no Campus Rio Pomba do Instituto Federal de Educa??o, Ci?ncia e Tecnologia do Sudeste de Minas Gerais. Tendo em vista que os profissionais dever?o estar preparados para o mundo do trabalho e exerc?cio da cidadania como um trabalhador empreendedor com vis?o para as oportunidades de neg?cios, a implementa??o da educa??o empreendedora nas escolas de educa??o profissional t?cnica e tecnol?gica deve basear-se no desenvolvimento de habilidades empreendedoras nos alunos. Para que este modelo de ensino empreendedor tome forma ser? necess?rio que a cultura empreendedora fa?a parte de toda a comunidade escolar, ?rg?os e setores envolvidos bem como a sociedade. A metodologia utilizada neste estudo foi o estudo de caso por meio de question?rio aplicado aos professores e egressos, com o objetivo de analisar o que os professores pensam sobre a forma??o empreendedora dos alunos dos cursos t?cnicos. Quanto aos egressos buscou-se conhecer a sua forma??o t?cnica e a import?ncia da forma??o empreendedora na vida profissional. A presente pesquisa buscou ainda descrever as diretrizes para o ensino t?cnico integrado, analisando e propondo uma nova matriz curricular, identificando os principais problemas da educa??o dentro da institui??o e pr?ticas pedag?gicas que correspondam a um modelo de ensino profissionalizante voltado para a forma??o empreendedora, estimulando o esp?rito empreendedor e fornecendo instrumentos para que os alunos encontrem seu lugar no mercado tamb?m como empres?rios. Pode-se observar que os professores concordam que a forma??o empreendedora ? importante para os alunos, al?m de ser muito importante no atual mercado de trabalho. Depreendeu-se dos egressos que faltou uma disciplina espec?fica e/ou a incorpora??o de conte?dos relacionados a forma??o empreendedora. Observou-se tamb?m que as experi?ncias com a empresa J?nior e a incubadora de empresas contribuem para a forma??o, demonstrando a import?ncia dessas experi?ncias para o desenvolvimento do esp?rito empreendedor. A matriz atual do curso t?cnico tem carga hor?ria muito elevada, restando pouco tempo para atividades complementares, e pouco se foca a forma??o empreendedora. Em suma, sugere-se que a matriz curricular seja reestruturada e que a pr?tica empreendedora seja refor?ada tamb?m nas atividades extracurriculares.